EP 0879991 A3 19990421 - Illuminating system
Title (en)
Illuminating system
Title (de)
Beleuchtungssystem
Title (fr)
Système d'illumination
Publication
Application
Priority
- JP 12234397 A 19970513
- JP 22499297 A 19970821
- JP 4496098 A 19980226
Abstract (en)
[origin: EP0879991A2] The illuminating system comprises a linear light source (1), and a light guide member (3) with the light source placed beside a side face thereof, in which the top face and the bottom face of the light guide member are generally parallel to each other and in which slits (31) made of a different material or air are arranged at specified intervals in the top face of the light guide member. Therefore, most of light propagating within the light guide member is totally reflected at the slits formed in the light guide member so as to be outputted from the light guide member, thereby illuminating a reflecting plate. Its reflected light is incident again on the light guide member and the resulting totally reflected light is transmitted to the observer's side at places other than the slits, while the observer's field of view is not obstructed at the slit portions. <IMAGE>
IPC 1-7
IPC 8 full level
F21V 8/00 (2006.01); G02B 6/00 (2006.01); G02F 1/13357 (2006.01)
CPC (source: EP KR US)
F21K 9/61 (2016.07 - KR); G02B 6/0018 (2013.01 - EP US); G02B 6/0028 (2013.01 - EP US); G02B 6/0031 (2013.01 - EP US); G02B 6/0038 (2013.01 - EP KR US); G02B 6/0048 (2013.01 - EP US); G02B 6/005 (2013.01 - EP US); G02B 6/0055 (2013.01 - EP US); G02B 6/0073 (2013.01 - KR); G02F 1/133615 (2013.01 - KR); F21V 2200/20 (2015.01 - KR); F21Y 2103/10 (2016.07 - KR); F21Y 2115/10 (2016.07 - KR); G02B 6/0036 (2013.01 - EP US); G02B 6/0046 (2013.01 - EP US); G02B 6/0053 (2013.01 - EP US); G02B 6/0068 (2013.01 - EP US); G02F 1/133616 (2021.01 - EP US)
Citation (search report)
- [X] WO 9708582 A1 19970306 - PHILIPS ELECTRONICS NV [NL], et al
- [XY] DE 19521254 A1 19960104 - MINNESOTA MINING & MFG [US]
- [A] US 4576436 A 19860318 - DANIEL MAURICE [US]
- [Y] EP 0534140 A1 19930331 - TOSOH CORP [JP]
- [A] GB 2281802 A 19950315 - SIMRAD STOWE LIMITED [GB]
- [X] WO 9534009 A1 19951214 - CLIO TECH INC [US], et al
- [AX] C.Y.TAI ET AL.: "A TRANSPARENT FRONTLIGHTING SYSTEM FOR REFLECTIVE-TYPE DISPLAYS", SID 95 DIGEST, - 23 May 1995 (1995-05-23), pages 375 - 378, XP000657155
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0879991 A2 19981125; EP 0879991 A3 19990421; KR 100315198 B1 20020117; KR 19980086997 A 19981205; US 2001019479 A1 20010906; US 6379017 B2 20020430
DOCDB simple family (application)
EP 98108588 A 19980512; KR 19980017136 A 19980513; US 76949701 A 20010126